Ps4 DNS Error NW-31247-7 Fix – 2018
One day you try to open your ps4 as like of regular day, and then suddenly you find out that you are connected to the internet yet you are disconnected from the ps4 server. You try to check what’s happening so you go to check your internet connection and bam it shows “A DNS Server cannot be found, Error NW-31247-7“. We can say that there is no specific nw 31247 7 ps4 fix as till date Sony hasn’t addressed this issue out publicly on why it happens but only have given us an error message saying :
“A DNS Server cannot be used. The DNS Server did not respond within the time limit. If you selected [Manual] under [IP Address settings] or [DNS Settings] when you set the Internet connection for the PS 4, verify that Primary DNS and Secondary DNS are set correctly. Error code: (NW-31247-7)”
NW-31247-7 will make the user unable to play online multiplayer games like FIFA, call of duty, battlefield, fallout etc. You may also be unable to join the PlayStation now, PlayStation store, PlayStation Vita, and many other PlayStation features.
What’s the Cause?
NW-31247-7 is a common network problem (NW= Network) which occurs due to the misconfiguration of the server and the client in the network or due to server failure. When DNS server doesn’t respond with the PS4 in a certain amount of time then PS4 throws this error.
Solution to Ps4 DNS Error NW-31247-7 :
Although the problem is simple the solution may be a little hard to implement as there may be different reasons which are causing this error. Make sure to check them one by one to have a maximum chance of solving this.
1. Restart The Router
While it may hear way simpler but restarting the router may be the first thing you want to do in these cause as sometimes the router itself cannot giver a proper id to the PS4 device thus resulting in the error. A simple restart may fix the error but if complex we may have to take other actions.
2. Assigning DNS of PS4 Manually
To manually assign DNS to the ps4 just follow the steps below:
- Go to play station settings > network > set up internet connection > LAN cable / Wifi > custom.
(Now you can manually change the settings of the network. Just follow the instruction given on the PS4 screen).
- Accept the options as you wish till you get DNS settings. Like custom >Ip Address (automatic) > DHCP hostname (Do not specify) > DNS settings
- Now in the DNS settings use Manual option and put in
188.8.131.52 (Google’s Public DNS server 1) as Primary DNS
184.108.40.206 (Google’s Public DNS server 2) as Secondary DNS
OR, 220.127.116.11 (Open DNS server 1) as Primary DNS
18.104.22.168 (Open DNS server 2) as Secondary DNS
- Now follow till the end like DHCP hostname (Do not specify) > DNS settings (manually)> MTU server (Automatic) > Proxy Server (Do not use) and click on the internet connection to check everything is working correctly.
3. Setting the Router to use DHCP
A DHCP allows you to manage IP’s, DNS, default gateway etc on a network. Setting the Router in DHCP mode is the best option as it can assign the IP according to the device so that there is no conflict between the devices with the same Ip address. When DHCP is enabled it assign your device with unique static IP which only changes over few days/weeks or even months. If two devices are assigned to the same Ip than there will be conflict in the network and the PS4 server won’t be able to send the required data to the necessary client thus resulting in the NW-31247-7 error. You can see the article on how to change the router to DHCP mode or static mode to use DHCP on your network.
4. Calling your ISP
Well if you can’t change the DNS your self and still facing this error then the best solution will be to contact your ISP ASAP about this matter. They will either give you better DNS, open your ports for PS4 etc and may solve the problem but I have found that many of the ISP won’t solve this problem at all.
5. Resetting your ROUTER to the default configuration (risky)
If none of the above works than resetting the router may be a risky but helpful solution. Before resetting your Router make sure that you know your default password of the wifi so that you can connect to the wifi after you have reset your router. For full instruction, prevention and solution on how to reset wifi router for most of the router devices widely used today.
6. Rebuild Ps4 Database In Safe Mode
DNS Error NW-31247-7 may also be solved by rebuilding the database in safe mode. It is a very safe process so you may do it without any damage or loss of your data. It helps to solve general bugs, clean up memory and other things that may be hampering the speed, memory or any other factors of the ps4. For a complete guide on how to Rebuild ps4 database follow the link ps4 rebuild database.
As it may be very hard to find the exact nw-31247-7 ps4 fix but we hope one day Sony will give us a clear solution to this problem and we will see no more of “A DNS Server cannot be found, Error NW-31247-7″. Till then we can only try to work out the best methods that have been working for many other users. If you find an error or more convenient fix to these problems feel free to comment below. Also, check out PS4 DNS page to find more tricks, helps etc related to DNS of your console.